Abstract:

By analyzing the hierarchical structure and spatial relationship of cities,we could well recognize the development and collaborative status of urban system，which have important significance to achieve harmony development between all cites in the region.Thus,all 32 cities around Poyang Lake were considered as the research object,and ranksize rule was used to analyze the urban system around Poyang Lake.The result showed that the proportion of middlerank cities was higher than other rank cities in 2006,and the population distribution in the area around Poyang Lake was in equilibrium.But，the 2cities primacy index in research area was up to 3.698,which means that the primacy advantage of Nanchang was very obvious.Then,the quantity of economical relation was used to analyze the membership grade of spatial relationship between Nanchang and other 31 cities around Poyang Lake.The result showed that the membership grade of Jiujiang and Fuzhou were higher than other secondclass cities,and the membership grade of Xingzi,Hukou,Pengze and Fuliang were lower than other thirdclass cities.Therefore,in order to promote the urban agglomeration around Poyang Lake developing harmony,some secondclass city,such as Jiujiang,Xinyu,should be accelerated in the construction of urbanization.And the economic cooperation between all cities should be enhanced.